正常眼压性青光眼及高眼压患者中央区与中央旁区角膜厚度

作     者：Jordan J.F. Joergens S. Dinslage S. 廖新华 

作者机构：University Eye Hospital University of Cologne Joseph- Stelzmann- Str. 9 50931 Cologne Germany 

出 版 物：《世界核心医学期刊文摘（眼科学分册）》 (Digest of the World Core Medical Journals:Ophthalmology)

年 卷 期：2006年第2卷第8期

页      面：39-40页

学科分类：1002[医学-临床医学] 100212[医学-眼科学] 10[医学] 

主　　题：角膜厚度 中央区 高眼压 角膜地形图 角膜中央 Orbscan 眼压测量 临床相关性 压平 异质性 

摘      要：Purpose: The difference in central corneal thickness among subgroups of glaucoma patients, as well as its influence on Goldmann applanation tonometry, has beenwell documented in several clinical trials. In the present study, possible similarities and differences between central corneal thickness and corneal thickness of paracentral quadrants in patients with normal tension glaucoma (NTG) and ocular hypertension (OHT) were investigated. Methods: Central and paracentral corneal thickness was measured by optical slit scan pachymetry (Orbscan II). Fourteen patients (28 eyes) with NTG and 11 patients (22 eyes) with OHT were included in this study. t-Test was performed for statistical analysis. To evaluate overall corneal topography, the mean and SD values of the differences between the central corneal thickness and each peripheral quadrant were analysed. Results: The following data was obtained (μ m): (central, upper, temporal, nasal, inferior paracentral quadrant): OHT group 617- 695- 663- 687- 660. NTG group 568- 629- 593- 612- 616. Corneal thickness of all four paracentral quadrants differed significantly between the OHT and NTG groups. There was a more heterogeneous intraindividual pattern of overall corneal topography in the OHT group, and a more heterogeneous pattern of corneal topography among the individuals of the NTGgroup (interindividual heterogeneity). Conclusions: A comparison of central corneal thickness and paracentral corneal thickness revealed clinically relevant differences between the OHT and NTG groups. The presented data underlines the importance of correlating the site of applanation with the corresponding corneal thickness, especially in OHT patients. It further substantiates the necessity to obtain individual pachymetric data for each NTG patient.